[R] Plot to a device and examine the plot?

Shu Fai Cheung @hu|@|@cheung @end|ng |rom gm@||@com
Sun Oct 15 17:04:00 CEST 2023

Hi All,

I want to inspect the content of a plot generated by another function.

For example:

polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))

A polygon will be drawn. If I do not know what has been done to generate
the plot, is it possible to query the content in the active device?

Shu Fai

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